Key-fastener



(No Model!) w. H. CRANE.

' KEY FASTENER.

Patented Jan. '4, '1887.

WITNESS'ES:

N. PETERS, Phctolllhognplmr, Wuhillginn. D. Q

liNITED STATES PATENT BEIGE.

:WILLIAM H. CRANE, OF YVOODBURY, NEW JERSEY, ASSIGNOR OF THREE- FOURTHSTO HENRY M. LOVE, OF PHILADELPHIA, PENNSYLVANIA.

KEY-FASTENER.

SPECIFICATION forming part of Letters Patent No. 355,593, dated.l'anuary 4,1887.

Application filed July 529, 1886. Serial No. 209,402. (No model.)

To aZZ whom it may concern.- I

Be it known that 1, WILLIAM H. CRANE, a citizen of the United States,residing in Woodbury, county of Gloucester, State of New J ersey, haveinvented a new and useful Improvement in KeyFasteners. which improvementis fully set forth in the following specification and accompanyingdrawings, in which- Figure 1 represents a front view of a keyfastenerfor a rim-lock embodying my invention. Fig. 2 represents a verticalsection of a portion thereof, the parts being in different positions.Fig. 3 represents a horizontal section in line a: .76, Fig. 1. frontview of a key-fastener employed for a mortise-lock.

Similar letters of reference indicate corre sponding parts in theseveral figures.

My invention consists of a fastener for a lock-key, whereby the latteris prevented from being turned from the'outside of the door, the novelfeature thereof being a securing device for a slide which engages withthe key.

Referring to the drawings, A represents a lock, which in Figs. 1, 2, and3 is of the order of a rim-lock and in Fig. 4 of a mortise-lock.

On the face-plate B of the lock, surrounding the key-hole, are parallelbars 0, which may be cast with or otherwise secured to said plate, andform ways or guides for a slide or sliding plate, D, which is slotted,forming a bifurcation or fork, so as to embrace the shank of the key ofthelock, it being noticedthat said shank' is flattened or angular, sothat the walls of the slot interlock therewith and prevent the rotationof the key, this feature, however, not being novel in itself.

In order to prevent movement of the slide D and consequent release ofthe key, I employ a block, E, which is freely fitted in an opening,F, intheface-plate B, in a direction at a right angle to the slide D, so thatwhen the latter is in closed or locked position it pro jects across andengages with the side of the slide opposite to the slot or bifurcationof the same, and thereby prevents movement of the slide, especially fromthe outside. This block E has its inner end connected with a spring orspring-strip, G, which latter is secured to Fig. 4. represents atheplate B and has attached to it a button,

H, which passes freely through said plate B, so that when the key is tobe rotated for un locking purposes the button H is depressed or forcedin, whereby'the block enters the lock and clears the slide, and thus thelatter may 5 5 .be moved and the key accordingly released.

\Vhen the button is let go, the block E is held against -the back of theslide, and when the key is locked the slide is moved into engagementtherewith, the block then springing out- 6.0 ward against the end oredge of the slide and securing the latter, the key being therebyfastened. l

The lock-case is divided by a partition, J, which separates the works ofthe look from the spring G and inner end of the block E, so that shouldan implement be introduced into the lock through the key-hole from theoutside it is prevented from reaching said spring and block, owing tosaid partition J, and thus improper operation of the block is prevented.For a mortise-lock a plate, 13, is secured to the door, &c., at theplace of occupation of the eseutcheou, and provided with aslide andother features similar to the rimlock, excepting the partition J, whichmaybe formed in the woodwork of the door, &c.

The slide D is, for convenience in operation, provided with aprojecting. portion or fingerpiece, D, and secured to the plate B is astpp, K, which serves to limit the movement of the slide when the sameis disengaged fromthe key.

'I am aware that it is not new to constructa lock having secured to thecasing thereof a pivoted escutcheon adapt-ed to be broughtin '85 contactwith the key and provided with fasten'ing devices whereby the said keyand escutcheon are securely held in place, and such I do not claim.

Havingthus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A key-fastener having a bifurcated slide,

a lock-plate provided with guides for said slide,

and an opening in the path of travel of said 5 serves to hold the blockengaged with the slide, inside plate cf the lock, adapted to limit thesaid parts being combined and operating submovement of the slide, theparts being comstantially as described. bined and operatingsubstantiallyas described. 10

2. A key-fastener formed of a bifurcated W. H. CRANE. 5 slide, guidesfor said slide, a block operated W'itnesses:

by a spring adapted to hold said slide in en- J GEN A. \VIEDERSHEIM,

gagement with thekey, and a stop secured to th e A. P. GRANT.

